87257025 has 36 divisors (see below), whose sum is σ = 164520720. Its totient is φ = 44085600.

The previous prime is 87257017. The next prime is 87257041. The reversal of 87257025 is 52075278.

87257025 is a `hidden beast` number, since 87 + 2 + 570 + 2 + 5 = 666.

It is not a de Polignac number, because 87257025 - 2³ = 87257017 is a prime.

It is a super-2 number, since 2×87257025² = 15227576823701250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5931 + ... + 14480.

It is an arithmetic number, because the mean of its divisors is an integer number (4570020).

Almost surely, 2^87257025 is an apocalyptic number.

It is an amenable number.

87257025 is a deficient number, since it is larger than the sum of its proper divisors (77263695).

87257025 is a wasteful number, since it uses less digits than its factorization.

87257025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20446 (or 20438 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 87257025 is about 9341.1468781943. The cubic root of 87257025 is about 443.5406894902.

The spelling of 87257025 in words is "eighty-seven million, two hundred fifty-seven thousand, twenty-five".